This is a picture of my backpack for work. On the left hand you’ll see the Beryl with the power supply. It fits well, but the 90° plug of the power supply won’t fit well in any of my bags/flight cases.
I have some 180° (wall plug to usb outlet) power supply for my tablet, mobile, kindle. But none of them will deliver 3A.
It is not very important, but I like to address this issue here